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Poaceae

Polypogon Desf.

Kingdom: Plantae Rank: Genus Parent: Poaceae Status: Valid

Common Names:

  • RABBIT’S-FOOT GRASS - English, United States of America
  • BEARD GRASS - English, United States of America

Morphological Description

Diagnosis: Annuals or perennials without rhizomes; ligule a membrane; inflorescence a dense, contracted panicle; spikelets small, 1-flowered, disarticulating below glumes (sometimes near apex of pedicel, sometimes near base of pedicel); lemma 1/2–3/4 times as long as the glumes; anthers 3.

Other

Notes: A C₃ genus of ca. 18 species (Tucker 1996; Barkworth ined.) of warm temperate areas and tropical mountains. It is similar to Agrostis, and hybridization is known between the two. However, in Polypogon disarticulation of the spikelets is below the glumes, while in Agrostis it is above (Tucker 1996). Both species occurring in East TX are considered significant weeds by some authorities (e.g., Watson & Dallwitz 1992). (Greek: polys, much, and pogon, beard, presumably because of the conspicuous awns of some species) (subfamily Pooideae, tribe Aveneae)